Quick Stats

1950-61 646cc (70x84mm) OHV twin 40hp, 100mph, 60mpg, 400lbs

What to Expect

Bored and stroked version of the A7 that was to become famous for writing off the main’s when tuned, but most have upgraded crank’s by now and, anyway, work very well when ridden mildly. Again, swinging arm, duplex frame version the one to go for and avoid anything that’s tuned. Can more or less keep up with modern road speeds and easily upgraded with newer electrics, plus later suspension and brakes.